Semtke Electronic company limited  focuses on the full chain business of power energy storage devices and supercapacitors, covering research, development, production, and sales, as well as providing professional energy storage technology services. The company has been deeply involved in the field of power energy storage devices and core materials for a long time, and has accumulated rich and profound industry experience through in-depth basic research and technical understanding of power energy storage materials and devices.

In terms of core technology breakthroughs, significant technological understanding has been achieved in key areas such as efficient energy harvesting, storage, conversion devices, and related materials, successfully overcoming a series of key technical challenges that constrain industry development. For example, carbon based graphene composite materials have a much larger specific surface area than commercial activated carbon, and have the characteristics of significantly increasing the number of micropores and effectively reducing oxygen content, laying a solid foundation for the preparation of high pressure resistant and high-capacity double-layer electrodes. The electrochemical window of the high-voltage electrolyte reaches up to 3.5V. With the support of this technology, the development and mass production of high-performance core electrode materials, electrolytes, and high-energy density EDLC devices have been successfully completed. The product voltage platform can reach 3.0V/3.2V, and the capacity range covers 1F to 3400F. The product forms are diverse, including small guide pin type cells, medium-sized solder pin type cells, and large laser welded cells.